Power adapter



FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a front perspective view of the present invention; and,

FIG. 5 is a rear perspective view of the present invention;

The broken line showing of the environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a power adapter, as shown and described. 